Siemens P technical specifications Shut-off valves to DIN 16270, DIN 16271 and DIN, 193

© Siemens AG 2008

SITRANS P measuring instruments for pressure

Fitttings - Shut-off valves for gage and absolute pressure transmitters

Shut-off valves to DIN 16270, DIN 16271 and DIN 16272

■Overview	Selection and Ordering data		Order No.
	Shut-off valves, form B, DIN 16270
	without test collar, pipe union with ferrule
	12 S DIN EN ISO 8484-1, without certificate
	Material	Maximum permissible		2
	Valve housing	working pressure
	P250GH	400 bar	7MF9401-8AB
	(mat. No. 1.0460)
	X 6 CrNiMoTi 17 12 2	400 bar	7MF9401-8AC
	(mat. No. 1.4571/316Ti)

Shut-off valves, form B, DIN 16271

Transmitter for pressure with double shut-off valve 7MF9401-...

The shut-off valves for pressure gages are used to shut off the line of the measured medium when dealing with aggressive and non-aggressive gases, vapors and liquids.

■Design

A water trap must be connected upstream of the shut-off valve in the case of temperatures of the medium above 120 °C. The shut-off valves form B have a shaft with which they can be se- cured on an instrument bracket. An adapter is therefore not re- quired to secure these valves. The vent/test connection can be shut off separately with the double shut-off valves DN 5. This per- mits checking of the zero on the pressure gage. In addition, the characteristic of the pressure gage can be checked using an ex- ternal pressure source.

Selection and Ordering data		Order No.
Shut-off valves, form B, DIN 16270
without test collar, connection shank,
without certificate
Material	Maximum permissible
Valve housing	working pressure
CW614N (CuZn39Pb3)250 bar		7MF9401-7AA
(mat. No. 2.0402)
P250GH	400 bar
		7MF9401-7AB
(mat. No. 1.0460)
X 6 CrNiMoTi 17 12 2	400 bar	7MF9401-7AC
(mat. No. 1.4571/316Ti)
Shut-off valves, form B, DIN 16271
with test collar, connection shank,
without certificate
Material	Maximum permissible
Valve housing	working pressure

with test collar, pipe union with ferrule

12 S DIN EN ISO 8484-1, without certificate

Material	Maximum permissible
Valve housing	working pressure
P250GH	400 bar
		7MF9401-8BB
(mat. No. 1.0460)
X 6 CrNiMoTi 17 12 2	400 bar	7MF9401-8BC
(mat. No. 1.4571/316Ti)
Double shut-off valves, form B, DIN 16272
with test collar, connection shank,
without certificate
Material	Maximum permissible
Valve housing	working pressure
CW614N (CuZn39Pb3)250 bar
		7MF9401-7DA
(mat. No. 2.0402)
P250GH	400 bar	7MF9401-7DB
(mat. No. 1.0460)
X 6 CrNiMoTi 17 12 2	400 bar	7MF9401-7DC
(mat. No. 1.4571/316Ti)
Double shut-off valves, form B, DIN 16272
with test collar, pipe union with ferrule
12 S DIN EN ISO 8484-1, without certificate
Material	Maximum permissible
Valve housing	working pressure
P250GH	400 bar
		7MF9401-8DB
(mat. No. 1.0460)
X 6 CrNiMoTi 17 12 2	400 bar	7MF9401-8DC
(mat. No. 1.4571/316Ti)
Accessories
Factory test certificate EN 10204–2.2		7MF9000-8AB
Material acceptance test certificate		7MF9000-8AD
EN 10204-3.1

Instrument bracket, see page 2/197.

CW614N (CuZn39Pb3)250 bar		7MF9401-7BA
(mat. No. 2.0402)
P250GH	400 bar	7MF9401-7BB
(mat. No. 1.0460)
X 6 CrNiMoTi 17 12 2	400 bar	7MF9401-7BC
(mat. No. 1.4571/316Ti)

Siemens FI 01 · 2009

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